The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 20, 2016
Filed:
Mar. 23, 2012
Applicants:
Doseok Lee, Seoul, KR;
Takuya Kawagoe, Shiga, JP;
Hiroyuki Inoue, Shiga, JP;
Inventors:
Assignee:
Toray Industries, Inc., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 35/04 (2006.01); F26B 13/00 (2006.01); F26B 21/00 (2006.01); B29C 55/08 (2006.01); B29C 55/20 (2006.01);
U.S. Cl.
CPC ...
B29C 35/045 (2013.01); B29C 55/08 (2013.01); B29C 55/20 (2013.01); F26B 13/00 (2013.01); F26B 21/004 (2013.01);
Abstract
A tenter oven stretches a thermoplastic resin film in the width direction thereof, wherein an air blowing nozzle provided therein that blows heated air onto a film running along a film passing surface is a proximate nozzle in which an air blowing opening provided on the air blowing surface thereof is formed as a slit, a distance (L) between the air blowing surface and the film passing surface and a slit width (B) of the slit satisfy the relationship expressed by the equation, (L/B)≦10, and the distance (L) is 150 mm or less.